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US5785522A - Method of treating surgical drill, surgical drill and use of surgical drill - Google Patents

Method of treating surgical drill, surgical drill and use of surgical drill Download PDF

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Publication number
US5785522A
US5785522A US08338628 US33862895A US5785522A US 5785522 A US5785522 A US 5785522A US 08338628 US08338628 US 08338628 US 33862895 A US33862895 A US 33862895A US 5785522 A US5785522 A US 5785522A
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US
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Grant
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Prior art keywords
drill
bone
predetermined
implant
tissue
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US08338628
Inventor
Nils Gustav Bergstrom
Anders Holmen
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Astra AB
Pioneering Tech Inc
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Astra AB
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines
    • B23B51/02Twist drills
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1613Component parts
    • A61B17/1615Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0089Implanting tools or instruments
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/06Measuring instruments not otherwise provided for
    • A61B2090/062Measuring instruments not otherwise provided for penetration depth
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2224/00Materials of tools or workpieces composed of a compound including a metal
    • B23B2224/36Titanium nitride
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2231/00Details of chucks, toolholder shanks or tool shanks
    • B23B2231/02Features of shanks of tools not relating to the operation performed by the tool
    • B23B2231/0248Codes for diameters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2251/00Details of tools for drilling machines
    • B23B2251/52Depth indicators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2260/00Details of constructional elements
    • B23B2260/088Indication scales

Abstract

The invention relates to a surgical drill made of metal, for instance made of surgical grade stainless steel or carbon steel, intended for use when implanting cylindrical implants into bone tissue, preferably dental implants made of titanium. The body (3) of the drill (1) is coated by a thin layer of titanium nitride (TiN). The layer of titanium nitride is brightly colored and circumferential bands (8, 9, 10, 11) having a darker color have been etched around the envelope surface of the body (3) of the drill, said bands (8, 9, 10, 11) being located at predetermined distances from each other and having predetermined widths.

Description

This application is filed under 35 USC 371 based on PCT/SE93/00452, filed on May 19, 1993.

TECHNICAL FIELD OF THE INVENTION

The invention relates to surgical drills made of metal, for instance made of surgical grade stainless steel, which are intended for use when implanting cylindrical implants into bone tissue, preferably dental implants made of titanium. The invention also relates to a method for treating such drills and to the use of such drills.

BACKGROUND OF THE INVENTION

When implants are fitted into bone tissue, different kinds of metallic surgical tools are used to prepare the site in the tissue where the implant is to be located. These tools normally are made of carbon steel (normally in disposable tools) or surgical grade stainless steel (normally in non-disposable tools).

In some cases it may however be advantageous if at least the surface of the tools are covered with a material which is more biocompatible than the material in the tool even if the tool is not to remain in the bone tissue for a long period of time. This material of course should be equally hard or harder than the material in the tool. This is particularly advantageous in drills. Drills will be in a close contact with the tissue during a relatively long period of time since their sides are in rotary contact with the sides of the borehole during the entire time the front part of the drill is cutting through the bone tissue. If the drill is not of an inert material as regards the chemical environment prevalent in bone tissue and blood, some slight contaminations may affect the sides of the bore hole. These contaminants can affect the so-called osseointegration process which is important in connection with bone implants and which seems to be sensitive in respect of contaminants.

Another prerequisite for a good osseointegration is a good, stable fit between bone tissue and implants, the osseointegration being dependent on a close contact between bone tissue and implant surface. When a bore-hole for an implant is drilled, it therefore is important that the length of the bore-hole corresponds as closely as possible to the length of the implant chosen.

It is also very important that the bore-holes are drilled to an exact, pre-determined depth in the parts of the jaw where the nerve is located in order to avoid damage to the nerve.

BRIEF DESCRIPTION OF THE INVENTIVE CONCEPT

The above problems are solved in that a drill of the kind described introductorily is coated by a thin, brightly colored layer of titanium nitride (TiN). Titanium nitride has a higher level of biocompatibility than the materials normally used in surgical drills.

In a preferred embodiment circumferential band(s) having a darker color have been etched in the brightly colored layer of titanium nitride around the envelope surface of the drill. Said bands are located at predetermined distances from each other and have predetermined widths.

Further advantageous embodiments and a use of a drill according to the invention are set forth in the dependent claims. A method of obtaining a drill according to the invention is set forth in the independent claim 6.

BRIEF DESCRIPTION OF THE APPENDED DRAWING

FIG. 1 shows a preferred embodiment of a drill according to the invention in a longitudinal side view.

DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT OF THE INVENTION

A drill 1 designed in accordance with the invention is shown in the drawing. The drill is provided with a shank designed with a tang 5 designed in accordance with ISO 1797. The diameter of the drill is etched in the shank, at 7. The drill in this particular case is manufactured of stainless steel W.Nr 1.4034, AISI 420.

The drill 1 further is provided with a fluted body 3 having two helical flutes 4, only one being indicated. The neck between the body and the shank is provided with a colored band 6 identifying the size of the drill in that each size of drill has a band of a different color.

The entire length A of the body is covered with a thin layer of titanium nitride having a bright yellow color.

As indicated by means of the chain of measurements 12, a dark band 8 having a width of 1 mm is located at a distance of 8 mm from the tip of the drill 1. Each following dark band 9, 10, 11 is separated from the adjacent band by means of a space having a width of exactly 2 mm. Since the titanium nitride has a bright yellow color and the darker bands are almost black, a very distinct level indication is given at each boundary line between darker bands and lighter areas.

The drill according to the invention can be fabricated in the following steps:

a) coating the drill with a thin layer of titanium nitride (TiN) by means of chemical vapour deposition until the drill obtains a bright permanent color,

b) etching circumferential bands with pre-determined widths being located at pre-determined distances from each other around the outer surface of the drill by means of a laser beam, the bands thus being dark and sharply defined.

The use of a laser beam has the advantage that the boundary lines will be very sharp and well defined and that the contrast between darker and lighter areas will be high.

The etched areas will remain essentially smooth in spite of the treatment, which ensures that there will be no rough areas on the drill upon which contaminants easily will adhere.

When the drill is to be used, for instance in order to implant a screw-shaped fixture for a dental implant, the type of fixture is first chosen in accordance to the prevailing conditions in the jaw, i. e. for instance the shape of the jaw-bone. A drill having a diameter adapted to the diameter of the implant is then chosen and a hole is bored into the jaw-bone. As mentioned above, the drill is provided with dark, circumferential bands corresponding to the lengths of a series of standard sizes of implants having a diameter corresponding to the diameter of the drill. The bore-hole is drilled to a depth determined by that boundary between darker band and lighter titanium nitride surface which corresponds to the implant chosen. The fixture is then screwed into the jaw bone. Since the depth of the hole exactly corresponds to the length of the fixture (or of the threaded part thereof), the fixture will fit closely in the hole.

Bone implants may also be relatively smooth instead of being provided with threads. This kind of implants sometimes are carefully tapped into place in a borehole in the bone by means of a small hammer. The bore-hole may have a diameter which is slightly narrower than the diameter of the implant. However carefully this is done, there always is a risk that the fixture may be pushed to far down into the hole if the length of the hole does not exactly correspond to the fixture. The drill according to the invention thus may be particularly useful in this case, since it may be difficult to extract an implant which has been pushed to far down into a hole.

These problems might also arise if the bore-hole is to shallow for the implant. In both cases the act of extraction per se might cause a trauma to the walls of the bore-hole which might have a deleterious influence on the osseointegration process.

If the surface of the bone into which the fixture is to be inserted is obliquely oriented relative to the longitudinal direction of the hole, the above-mentioned boundarys on the drill will also serve as indexes on a ruler for measuring the difference in level between the edges of the bore-hole and will consequently be very useful when determining how deep the hole has to be in order to house the implant correctly in relation to the oblique surface of the bone.

It should be emphasized that the invention is not limited to the embodiment described above and can be varied in many ways within the scope of the appended claims.

In particular, the invention should not be considered to be limited to the field of dental implants. The invention thus also is applicable to the entire field of implants in bone tissue.

Furthermore, the bore-hole for instance could be bored in two stages a first stage with a narrow pilot drill and a second stage with a full-size drill. It might also be conceivable to provide only one band on the drill body.

Claims (9)

We claim:
1. A metallic surgical drill adapted in use to drill a bore into a bone tissue structure for implantation of a cylindrical implant selected from a set of cylindrical implants of different predetermined insertion lengths in the bone tissue structure, the drill having a body with an insertion end which presents a drill tip and an outer surface which is provided with a thin titanium nitride coating on which there is presented a series of spaced apart circumferential bands of contrasting color and predetermined width wherein the boundary lines of the circumferential bands are disposed at different predetermined distances from a predetermined datum point at the insertion end of the body corresponding to the different predetermined insertion lengths of the implants in the set whereby the surgical drill is able to drill a bore of correct depth for any implant selected from the set for implantation in the bone tissue structure by drilling into the bone tissue structure up to the boundary line corresponding to the predetermined insertion length of the selected implant.
2. Surgical drill according to claim 1 wherein the outer surface is provided with a brightly colored layer of titanium nitride on which there is etched circumferential bands having a darker color.
3. Surgical drill according to claim 1 or claim 2 wherein each band has a width of 2 mm, apart from the band located nearest to the drill tip of the drill and the band furthest from the drill tip which have a width of 1 mm, the distance between the boundary lines of adjacent bands being 2 mm.
4. In combination, a cylindrical implant having a predetermined insertion length for insertion into a bore in a bone tissue structure and a metallic surgical drill adapted in use to drill the bore into the bone tissue structure, the drill having a body with an insertion end which presents a drill tip and an outer surface which is provided with a thin titanium nitride coating on which there is presented a circumferential band of contrasting color and predetermined width having a boundary line disposed at a predetermined distance from a predetermined datum point at the insertion end of the body which corresponds to the predetermined insertion length of the implant whereby drilling a bore into the bone tissue structure with the surgical drill up to the boundary line results in the bore having a depth which corresponds to the predetermined insertion length of the implant.
5. In combination, a set of cylindrical implants having different predetermined insertion lengths for insertion into bores in a bone tissue structure and a metallic surgical drill adapted in use to drill a bore into the bone tissue structure, the drill having a body with an insertion end which presents a drill tip and an outer surface which is provided with a thin titanium nitride coating on which there is presented a series of spaced apart circumferential bands of contrasting color and predetermined width wherein the boundary lines of the circumferential bands are disposed at different predetermined distances from a predetermined datum point at the insertion end of the body corresponding to the different predetermined insertion lengths of the implants in the set whereby the surgical drill is able to drill a bore of correct depth for any implant in the set by drilling into the bone tissue structure up to the boundary line corresponding to the predetermined insertion length of the implant selected from the set for implantation in the bone tissue structure.
6. Combination according to claim 4 or 5 wherein the outer surface of the surgical drill is provided with a brightly colored layer of titanium nitride on which there is etched a circumferential band or bands having a darker color.
7. Combination according to claim 4 or 5 wherein each implant is a dental implant.
8. Method for providing the outer surface of the surgical drill of any one of claims 7, 8 or 9 with the thin titanium nitride coating comprising the steps of:
a) coating the outer surface of the drill with a thin layer of titanium nitride (TiN) by means of chemical vapour deposition until the drill obtains a bright permanent color, and then b) etching dark, sharply defined spaced apart circumferential bands of predetermined widths at pre-determined locations on the outer surface of the drill by means of a laser beam.
9. A method of implanting a cylindrical implant into a bone tissue structure comprising the steps of:
a) providing a set of cylindrical implants having predetermined different insertion lengths of corresponding diameter,
b) providing a metallic surgical drill adapted in use to drill a bore into the bone tissue structure, the drill having a body of diameter corresponding substantially to that of the insertion lengths of the implants with an insertion end which presents a drill tip and an outer surface which is provided with a thin titanium nitride coating on which there is presented a series of spaced apart circumferential bands of contrasting color and predetermined width, the boundary lines of the circumferential bands being disposed at different predetermined distances from a predetermined datum point at the insertion end of the body corresponding to the different predetermined insertion lengths of the implants,
c) selecting an implant from the set with the correct predetermined insertion length for the prevailing conditions in the bone tissue structure,
d) drilling a bore into the bone tissue structure with the surgical drill up to the boundary line of the circumferential band corresponding to the predetermined insertion length of the selected implant, and
e) inserting the predetermined insertion length of the selected implant into the bore.
US08338628 1992-05-27 1995-02-07 Method of treating surgical drill, surgical drill and use of surgical drill Expired - Lifetime US5785522A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9201670 1992-05-27
SE9201670 1992-05-27

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US5785522A true US5785522A (en) 1998-07-28

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US (1) US5785522A (en)
EP (2) EP0928599A3 (en)
DE (2) DE69326339T2 (en)
DK (1) DK0643567T3 (en)
ES (1) ES2137992T3 (en)
FI (1) FI110840B (en)
WO (1) WO1993024061A1 (en)

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002009598A2 (en) * 2000-08-02 2002-02-07 Nobel Biocare Ab Endosseous implant drill
US6368336B1 (en) 1999-10-12 2002-04-09 Ronvig A/S Device for soft tissue modeling and coagulating soft tissue
WO2002053044A1 (en) * 2000-12-28 2002-07-11 Artimplant Ab A surgical device for internal processing of a hole
US20020173794A1 (en) * 2001-05-16 2002-11-21 Inion Ltd. Tool for making threaded surgical holes
US6514258B1 (en) 1998-11-04 2003-02-04 Implant Innovations, Inc. Penetration limiting stop elements for a drill bit used for bone tissue
US6547562B2 (en) 2000-05-11 2003-04-15 Nobel Biocare Ab Pseudo-etching of diamond-like carbon coated instruments
US6607533B2 (en) * 2001-09-25 2003-08-19 The Anspbell Effort, Inc Miniature cutter shaft configuration
US20040092940A1 (en) * 2002-11-13 2004-05-13 Zwirnmann Ralph Fritz Adjustable length tap and method for drilling and tapping a bore in bone
WO2004066850A1 (en) * 2003-01-31 2004-08-12 Wolfgang Oettinger Medical drilling device
US20050222571A1 (en) * 2004-03-30 2005-10-06 Ryan Christopher J Adjustable depth drill bit
US20050271486A1 (en) * 2004-06-07 2005-12-08 Henderer Willard E Low torque tap
US20060085005A1 (en) * 2004-10-01 2006-04-20 Kenealy James N Iii Bone drill system with highly visible depth markings
US20080167653A1 (en) * 2007-01-05 2008-07-10 Watlington Michael B Drill bit assembly for bone tissue including depth limiting feature
US20090054906A1 (en) * 2007-08-24 2009-02-26 Zimmer Orthobiologics, Inc. Medical device and method for delivering an implant to an anatomical site
US20090136308A1 (en) * 2007-11-27 2009-05-28 Tdy Industries, Inc. Rotary Burr Comprising Cemented Carbide
US20090224133A1 (en) * 2008-02-29 2009-09-10 Gass Stephen F Mobile base for a table saw
US20100203479A1 (en) * 2009-02-06 2010-08-12 Bulloch Scott E Dental implant system and methods
US20100228255A1 (en) * 2004-02-05 2010-09-09 Bti, I+D, S.L. Method and tools for low-speed milling without irrigation and with extraction and recovery of tissue particles
US20100292700A1 (en) * 2009-05-12 2010-11-18 Wolfgang Ries Spine cutter
US20110123946A1 (en) * 2009-02-06 2011-05-26 Bulloch Scott E Dental implant system and methods
US20110170972A1 (en) * 2010-01-13 2011-07-14 Irwin Industrial Tool Company Coated hole cutter
US20110208192A1 (en) * 2008-05-09 2011-08-25 Gpi Technology Gmbh Surgical tool, especially for machining bones for insertion of a dental implant
US20110319895A1 (en) * 2010-06-25 2011-12-29 Depuy Mitek, Inc. Fluted bone awl and method of use
USRE43714E1 (en) 1999-12-15 2012-10-02 Zimmer Orthobiologics, Inc. Preparation for repairing cartilage defects or cartilage/bone defects in human or animal joints
US8343195B2 (en) 2004-04-12 2013-01-01 Synthes Usa, Llc Drill-tap-screw drill guide
US8753406B2 (en) 2010-08-31 2014-06-17 Zimmer Inc. Osteochondral graft delivery device and uses thereof
US20140276843A1 (en) * 2013-03-13 2014-09-18 DePuy Synthes Products, LLC Bone Fixation Device
US20160022879A1 (en) * 2014-07-24 2016-01-28 Jared Ruben Hillel FORAN Hypoallergenic orthopedic surgical instruments and methods
WO2018006151A1 (en) * 2016-07-05 2018-01-11 Brites Débora Device with millimetric grading for osteotomy

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0696904B1 (en) * 1994-02-14 1999-12-15 Nobel Biocare AB (reg. no. 556002-0231) Depth-marking system arrangement for implant holes in the jawbone
FR2718343B1 (en) * 1994-04-08 1996-12-20 Francis Poulmaire Equipment for the preparation of bone-implant accommodates a blade, dental prosthesis support.
FR2762776B1 (en) * 1997-04-30 1999-06-04 Implant Diffusion Surgical drill recuperator of bone having an abutment Color repere
DE69937461D1 (en) * 1998-11-12 2007-12-13 Nobel Biocare Ab Diamond-like carbon coated dental instrument
WO2001060261A9 (en) 2000-02-18 2002-10-24 Stryker Corp Surgical tool system with variable length attachments
US20040129125A1 (en) * 2003-01-02 2004-07-08 Colquhoun Ross M. Cutting tool with depth of cut markings
DE10303202A1 (en) * 2003-01-28 2004-07-29 Müller, Peter, Dr.med.dent. Implant drills for tooth implants, has a cylindrical shank having colored tags in the form of spots or lines to indicate the quantity of applications of the tool
DE20308626U1 (en) * 2003-06-03 2004-10-14 Hausmann, Thomas Surgical drill, in particular, for bone drilling is provided with a coating to which bonemeal does not adhere or only slightly does so
DE102004027299A1 (en) * 2004-06-04 2005-12-29 Gebr. Brasseler Gmbh & Co. Kg Dental tool, comprising separate marking ring attached to grooved area at shaft
EP1759654B1 (en) 2005-09-05 2008-04-23 Straumann Holding AG Dental drilling apparatus with stopping element
DE102006032534B4 (en) * 2006-07-12 2013-08-01 Rolf Vollmer Osteotom
FR2904941B1 (en) * 2006-08-21 2009-05-22 Meherenc De Saint Pierre Henri Marie Antoine De Rotating tool chuck jaw and a machining method of the tool
DE102006042226A1 (en) * 2006-09-06 2008-03-27 Günther & Co. GmbH Coated twist drill
KR100811595B1 (en) 2007-01-11 2008-03-11 조선대학교산학협력단 Guiding instrument for an implant placement
DE102009029714A1 (en) 2009-06-16 2010-12-30 Dentaurum J.P. Winkelstroeter Kg Surgical drill for use during implantation of tooth implant, has collecting section comprising recess in which chip flutes are opened for receiving and collecting removed bone material

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4461799A (en) * 1983-02-14 1984-07-24 Vsesojuzny Nauchnoissledovatelsky Instrumentalny Institut Cutting tools with wear-resistant coating of heat-resistant compounds of high-melting metals and method for manufacturing same
DE3622676A1 (en) * 1985-08-28 1987-03-12 Werner Scholz Surgical drill
US4681541A (en) * 1985-07-05 1987-07-21 Snaper Alvin A Dental bur with enhanced durability
US4704055A (en) * 1983-02-08 1987-11-03 Gottlieb Guhring Drill with cooling channel
US4708542A (en) * 1985-04-19 1987-11-24 Greenfield Industries, Inc. Threading tap
US4897037A (en) * 1988-12-08 1990-01-30 Appleby David C Dental bur
US5125838A (en) * 1989-06-05 1992-06-30 Micro Mega Sa Endodontic canal instrument made of titanium
US5190548A (en) * 1991-04-10 1993-03-02 Linvatec Corporation Surgical reamer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4527449A (en) * 1982-09-13 1985-07-09 Rule Industries, Inc. Boring bit and method for manufacture thereof
DE3339004C1 (en) * 1983-10-27 1992-06-17 Karl-Heinz Dr. Mauren Li Schmidt Dental laboratory burs or dental cutting instruments or dental handpieces with cutting edges comprising one or more abrasion layers of compounds of titanium with carbon and/or nitrogen
US4904130A (en) * 1989-01-11 1990-02-27 Gorman Jeremy W Cutting tools with depth indication

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4704055A (en) * 1983-02-08 1987-11-03 Gottlieb Guhring Drill with cooling channel
US4461799A (en) * 1983-02-14 1984-07-24 Vsesojuzny Nauchnoissledovatelsky Instrumentalny Institut Cutting tools with wear-resistant coating of heat-resistant compounds of high-melting metals and method for manufacturing same
US4708542A (en) * 1985-04-19 1987-11-24 Greenfield Industries, Inc. Threading tap
US4681541A (en) * 1985-07-05 1987-07-21 Snaper Alvin A Dental bur with enhanced durability
GB2203343A (en) * 1985-07-05 1988-10-19 Alvin Allyn Snaper Dental bur
DE3622676A1 (en) * 1985-08-28 1987-03-12 Werner Scholz Surgical drill
US4897037A (en) * 1988-12-08 1990-01-30 Appleby David C Dental bur
US5125838A (en) * 1989-06-05 1992-06-30 Micro Mega Sa Endodontic canal instrument made of titanium
US5190548A (en) * 1991-04-10 1993-03-02 Linvatec Corporation Surgical reamer

Cited By (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6514258B1 (en) 1998-11-04 2003-02-04 Implant Innovations, Inc. Penetration limiting stop elements for a drill bit used for bone tissue
US6368336B1 (en) 1999-10-12 2002-04-09 Ronvig A/S Device for soft tissue modeling and coagulating soft tissue
USRE43714E1 (en) 1999-12-15 2012-10-02 Zimmer Orthobiologics, Inc. Preparation for repairing cartilage defects or cartilage/bone defects in human or animal joints
US6547562B2 (en) 2000-05-11 2003-04-15 Nobel Biocare Ab Pseudo-etching of diamond-like carbon coated instruments
US6641395B2 (en) 2000-08-02 2003-11-04 Nobel Biocare Ab Endosseous implant drill
WO2002009598A2 (en) * 2000-08-02 2002-02-07 Nobel Biocare Ab Endosseous implant drill
WO2002009598A3 (en) * 2000-08-02 2002-08-01 Steven M Hurson Endosseous implant drill
WO2002053044A1 (en) * 2000-12-28 2002-07-11 Artimplant Ab A surgical device for internal processing of a hole
US20020173794A1 (en) * 2001-05-16 2002-11-21 Inion Ltd. Tool for making threaded surgical holes
US6607533B2 (en) * 2001-09-25 2003-08-19 The Anspbell Effort, Inc Miniature cutter shaft configuration
US8197481B2 (en) 2002-11-13 2012-06-12 Synthes Usa, Llc Adjustable length tap and method for drilling and tapping a bore in bone
US6951562B2 (en) 2002-11-13 2005-10-04 Ralph Fritz Zwirnmann Adjustable length tap and method for drilling and tapping a bore in bone
US20090275949A1 (en) * 2002-11-13 2009-11-05 Ralph Fritz Zwirnmann Adjustable length tap and method for drilling and tapping a bore in bone
US7569058B2 (en) 2002-11-13 2009-08-04 Synthes Usa, Llc Adjustable length tap and method for drilling and tapping a bore in bone
US20060004372A1 (en) * 2002-11-13 2006-01-05 Synthes(Usa) Adjustable length tap and method for drilling and tapping a bore in bone
US20040092940A1 (en) * 2002-11-13 2004-05-13 Zwirnmann Ralph Fritz Adjustable length tap and method for drilling and tapping a bore in bone
US20060241628A1 (en) * 2003-01-31 2006-10-26 Parak Wolfgang J Medical drilling device
WO2004066850A1 (en) * 2003-01-31 2004-08-12 Wolfgang Oettinger Medical drilling device
US8092457B2 (en) 2003-01-31 2012-01-10 Wolfgang Oettinger Drilling device and drilling procedures for surgical purposes
US20100228255A1 (en) * 2004-02-05 2010-09-09 Bti, I+D, S.L. Method and tools for low-speed milling without irrigation and with extraction and recovery of tissue particles
US7163542B2 (en) 2004-03-30 2007-01-16 Synthes (U.S.A.) Adjustable depth drill bit
US20050222571A1 (en) * 2004-03-30 2005-10-06 Ryan Christopher J Adjustable depth drill bit
US8343195B2 (en) 2004-04-12 2013-01-01 Synthes Usa, Llc Drill-tap-screw drill guide
US20050271486A1 (en) * 2004-06-07 2005-12-08 Henderer Willard E Low torque tap
US7144208B2 (en) 2004-06-07 2006-12-05 Kennametal Inc. Low torque tap
US20060085005A1 (en) * 2004-10-01 2006-04-20 Kenealy James N Iii Bone drill system with highly visible depth markings
US20080167653A1 (en) * 2007-01-05 2008-07-10 Watlington Michael B Drill bit assembly for bone tissue including depth limiting feature
US8460297B2 (en) 2007-01-05 2013-06-11 Biomet 3I, Llc Drill bit assembly for bone tissue including depth limiting feature
US20090054906A1 (en) * 2007-08-24 2009-02-26 Zimmer Orthobiologics, Inc. Medical device and method for delivering an implant to an anatomical site
US20090136308A1 (en) * 2007-11-27 2009-05-28 Tdy Industries, Inc. Rotary Burr Comprising Cemented Carbide
US20090224133A1 (en) * 2008-02-29 2009-09-10 Gass Stephen F Mobile base for a table saw
US20110208192A1 (en) * 2008-05-09 2011-08-25 Gpi Technology Gmbh Surgical tool, especially for machining bones for insertion of a dental implant
US20110123946A1 (en) * 2009-02-06 2011-05-26 Bulloch Scott E Dental implant system and methods
US9039414B2 (en) 2009-02-06 2015-05-26 Scott E. Bulloch Drill guide pin, shank, cannulated drill bit, and driver for creating a hole in a bone
US20100203479A1 (en) * 2009-02-06 2010-08-12 Bulloch Scott E Dental implant system and methods
US20100292700A1 (en) * 2009-05-12 2010-11-18 Wolfgang Ries Spine cutter
US8449546B2 (en) 2009-05-12 2013-05-28 Joimax Gmbh Spine cutter
KR200476605Y1 (en) * 2009-05-12 2015-03-13 요이막스 게엠베하 Spine milling cutter
US9586270B2 (en) * 2010-01-13 2017-03-07 Irwin Industrial Tool Company Coated hole cutter
US20110170972A1 (en) * 2010-01-13 2011-07-14 Irwin Industrial Tool Company Coated hole cutter
US20110319895A1 (en) * 2010-06-25 2011-12-29 Depuy Mitek, Inc. Fluted bone awl and method of use
US8753406B2 (en) 2010-08-31 2014-06-17 Zimmer Inc. Osteochondral graft delivery device and uses thereof
US20140276843A1 (en) * 2013-03-13 2014-09-18 DePuy Synthes Products, LLC Bone Fixation Device
US20160022879A1 (en) * 2014-07-24 2016-01-28 Jared Ruben Hillel FORAN Hypoallergenic orthopedic surgical instruments and methods
WO2018006151A1 (en) * 2016-07-05 2018-01-11 Brites Débora Device with millimetric grading for osteotomy

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FI945545A (en) 1994-11-25 application
DK643567T3 (en) grant
FI110840B (en) 2003-04-15 application
ES2137992T3 (en) 2000-01-01 grant
FI110840B1 (en) grant
EP0928599A2 (en) 1999-07-14 application
EP0643567A1 (en) 1995-03-22 application
FI945545A0 (en) 1994-11-25 application
DK0643567T3 (en) 2000-03-13 grant
FI945545D0 (en) grant
WO1993024061A1 (en) 1993-12-09 application
DE69326339D1 (en) 1999-10-14 grant
EP0928599A3 (en) 1999-07-21 application
DE69326339T2 (en) 2000-04-13 grant
EP0643567B1 (en) 1999-09-08 grant

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